00:00Morning Glory Pool is a mesmerizing hot spring in the Yellowstone, Upper Geyser in the basin
00:06of the United States, because of its striking resemblance to the flower after which it was
00:11named.
00:12Morning Glory Pool was a popular hangout for early tourists.
00:16The Morning Glory Pool has occasionally erupted as a geyser, usually in response to an earthquake
00:22or other surrounding seismic activity.
00:25Thermofoils that are yellow and colorless flourish in the warmest water.
00:29Thermofoils that are orange, brown, and green flourish in the colder waters.
00:34Perhaps the water is cooling due to the natural processes.
00:38Warmer temperatures promote the growth of bacteria with orange and yellow hues.
00:43The microorganisms that live in the water give the pool its unique tint.
00:48Morning Glory Pool has an average pH of 7.6 and average conductivity of 2,098.
00:55And a temperature of 159.3 Fahrenheit.
00:59The Morning Glory Pool is about 23 feet deep, the most prevalent hydrothermal feature in
01:05Yellowstone's hot springs.
01:07There are no restrictions in their plumbing.
01:09When superheated water reaches the surface, it cools, sinks, and is replenished with hotter
01:14water from below.
01:16Water cannot get hot enough to cause an eruption because of this circulation.
01:21Although trillions of thermofoils are too small to view with the human eye, they are
01:26clustered together to form color masses.
01:29They are fed with energy and chemical building materials.
01:32A wide range of microbial mats with various hues and textures can be found in Yellowstone.
01:39Many thermophilic species cannot survive in the hotter water temperature.
01:44And the way the water scatters and absorbs light gives the appearance of a clear blue
01:49color in the hot spring.
01:51Cooler pools can have more colors because bacteria can develop there, while hotter pools
01:57are typically a vivid blue.
01:59Tourists have thrown debris into some of the entryways, clogging them and limiting the
02:04hot water flow, which has changed the pool's overall appearance.
02:08For many decades, people tossed trash, coins, and rocks into the frequent bases.
02:14The debris that had gathered at the foot of the vent blocked the flow of hot water
02:19into the pool.
02:20In the 1970s, rangers tried to remove as much rubbish as they could from the hot spring,
02:26while partially draining it out of worry for the effects of humans on morning glory colors.
02:32However, they were unable to stop the alteration.
02:35The outcomes of park officials' multiple attempts to intentionally trigger eruptions
02:41in order to empty the tabless pool and open clogged entryways have been inconsistent.
02:47The park's staff put up an interruptive sign near the pool that talks about the harm that
02:53ignorance and vandalism can do, and it implies the morning glory is turning into a faded
03:00glory.
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